Sucking pump: in sucking insects, a thick-walled muscular enlargement of the oesophagus that serves to draw up the liquid food = pharyngeal pump.
Sucking spears: the mandibles and maxillae of Hemerobiid larvae, used for puncturing prey and sucking its juices.
Sucking stomach: a thin-walled muscular pouch connected with the end of the oesophagus; serves as a food reservoir and is not commonly present except in some Lepidoptera.
Suctoria: an ordinal term proposed for fleas.
Suctorial: adapted for sucking: see haustellate.
Suctorial vesicles: bladder-like structures connected with the oesophagus in mosquitoes supposed to assist in blood-sucking; but this is disputed.
Suffused: clouded or obscured by a darker color.
Suffusion: a clouding, or a spreading of one shade over another.
Sulca: grooves, furrows or channels: plural of sulcus.
Sulcated: grooved; furrowed with broad, concave, parallel impressed lines.
Sulcus: a furrow or groove: a groove-like excavation.
Sulphureous -eus: bright, sulphur yellow [chrome lemon].
Supercilium: an arched line over an ocellate spot.
Super-family: a division of classification less than an order, including a series of family groups more closely related to each other than to similar groups within the order: opinionative and ending in oidea: sometimes hardly different from suborder; but lower than suborder when both terms are employed.
Supericornia: those Heteroptera having the antenna inserted on the upper parts of the sides of the head; e.g. Coreidae: see infericornia.
Superlinguae: the lateral pair of organs of hypo-pharynx in Thysanura.
Superlingual segment: the fifth segment of head.
Superne: denotes all those parts belonging to the upper surface.
Supernumerary: additional or added cells, veins or other structures.
Supernumerary segment: in Cecidomyidae, between the head and first thoracic segment.
Super-order: a group of allied orders, like the Linnaean Neuroptera.
Superposed: placed one above the other, as the frontal tufts in some moths.
Supplementary sectors: interposed sectors; q.v.
Suppression: the non-development of a part normally present.
Supra-alar bristles: in Diptera, are situated, one on the post-alar callus, one on the alar frenum, the third on the edge of the supra-alar depression.